KDS温补振荡器DSB221SDN 7EE03200A0D SMD2520 TCXO晶振 ¥2.60 32.768K OSC石英振荡器SMD3225 四脚台湾鸿星D3X003270004E晶振 ¥2.60 ABRACON无源贴片晶振ABM12W-32.0000MHZ-6-D1X-T3 ¥0.60 ABRACON时钟贴片晶振ABS07-32.768KHZ-1-T SMD3215 10PPM ¥0.60 SITIME有源晶振SiT8008BI-72-33E-100.000000G标准时钟振荡器 ¥1.70 SMD3225有源晶振EPSON爱普生SG-8101CE 100.000000MHZ TCH ¥2.30